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Hi A question on the Coupled Structure-Acoustic analysis on Abaqus. My goal is to calculate the acoustic pressure field in a half air spherical domain excited by a vibratory plate. My model is like: 1. I created a relative large air domain which is a half spherical domain, because my...

This is what I got from the analysis. You can see how messy the damping layer is. Actually, what I expect is this figure showing below. In fact, I did this after increasing Young's Modulus a bit of damping layer. In the mean time, it still has some modes which are crashed. Thanks, if you...

I am now facing an uncertainty which is about a normal plate structure covering some thicker damping layers (thickness: relative to the thickness of the plate) during modal analysis (Natural frequency and Mode Shapes). What I am actually modeling is that I dug out some materials from the plate...

most of time, I got 6.297e-3 at tip now. That is too small.

Thanks DanStro Yes the geometric order in mesh section was changed to Quadratic before. It would cause the issue on "attempt to generate many increments" if the NL opened. And I have done a optimization analysis on the number of nodes. It gave me an optimized number of nodes that can have...

And I also did vibration analysis. The Natural frequency and mode shape all matched the theory but only deflection.

Thanks IceBREAKERsours and DanStro This is my very initial part of my whole project. This part should help me to get through the Abaqus. Unfortunately, I cannot even find the right answer of this simple case. Actually, I read many tutorials on this topic and followed the procedures to do my...

Hi all I was doing a cantilever beam static loading analysis. I need to find its deflection with loads added. Then, the result from Abaqus will be used to compare with the result from theory equation. However, my result from abaqus is so weird and has a huge difference with theory result. I...

Thanks for confirming this. Shingouz

Hi all I am thinking that how can I write the Value of Shear Modulus in Material selection of Abaqus. Will it automatically be defined after I write the Young's Modulus and Poisson's ratio? Thanks. Regards, Joseph

Hi all I am newbie on using Abaqus. Now, I have to finish an analysis on a simple cantilever beam to investigate its deflection under different loads at either free-end and mid-point. Initially, I need to generate the deflection of the cantilever beam without any loads applied but due to its...